infiles,s,a,,,,"List of FITS file to be merged"
outfile,s,a,,,,"Name of output merged FITS file"
columns,s,a,,,,"List of column names for the merged FITS file"
mextname,s,h," ",,,"Merged file extension name"
copyprime,b,h,"yes",,,"Copy primary header and array"
lastkey,s,h,,,,"List of keyword from the last file to add/update"
history,b,h,"yes",,,"Add a history record citing this task"
clobber,b,h,no,,,"Overwrite existing output file?"
mode,s,h,"ql",,,